diff options
Diffstat (limited to '')
-rw-r--r-- | src/video_core/host_shaders/CMakeLists.txt | 43 | ||||
-rw-r--r-- | src/video_core/host_shaders/StringShaderHeader.cmake | 11 | ||||
-rw-r--r-- | src/video_core/host_shaders/opengl_present.frag | 10 | ||||
-rw-r--r-- | src/video_core/host_shaders/opengl_present.vert | 24 | ||||
-rw-r--r-- | src/video_core/host_shaders/source_shader.h.in | 9 |
5 files changed, 97 insertions, 0 deletions
diff --git a/src/video_core/host_shaders/CMakeLists.txt b/src/video_core/host_shaders/CMakeLists.txt new file mode 100644 index 000000000..aa62363a7 --- /dev/null +++ b/src/video_core/host_shaders/CMakeLists.txt @@ -0,0 +1,43 @@ +set(SHADER_FILES + opengl_present.frag + opengl_present.vert +) + +set(SHADER_INCLUDE ${CMAKE_CURRENT_BINARY_DIR}/include) +set(HOST_SHADERS_INCLUDE ${SHADER_INCLUDE} PARENT_SCOPE) + +set(SHADER_DIR ${SHADER_INCLUDE}/video_core/host_shaders) +add_custom_command( + OUTPUT + ${SHADER_DIR} + COMMAND + ${CMAKE_COMMAND} -E make_directory ${SHADER_DIR} +) + +set(INPUT_FILE ${CMAKE_CURRENT_SOURCE_DIR}/source_shader.h.in) +set(HEADER_GENERATOR ${CMAKE_CURRENT_SOURCE_DIR}/StringShaderHeader.cmake) + +foreach(FILENAME IN ITEMS ${SHADER_FILES}) + string(REPLACE "." "_" SHADER_NAME ${FILENAME}) + set(SOURCE_FILE ${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}) + set(HEADER_FILE ${SHADER_DIR}/${SHADER_NAME}.h) + add_custom_command( + OUTPUT + ${HEADER_FILE} + COMMAND + ${CMAKE_COMMAND} -P ${HEADER_GENERATOR} ${SOURCE_FILE} ${HEADER_FILE} ${INPUT_FILE} + MAIN_DEPENDENCY + ${SOURCE_FILE} + DEPENDS + ${HEADER_GENERATOR} + ${INPUT_FILE} + ) + set(SHADER_HEADERS ${SHADER_HEADERS} ${HEADER_FILE}) +endforeach() + +add_custom_target(host_shaders + DEPENDS + ${SHADER_HEADERS} + SOURCES + ${SHADER_FILES} +) diff --git a/src/video_core/host_shaders/StringShaderHeader.cmake b/src/video_core/host_shaders/StringShaderHeader.cmake new file mode 100644 index 000000000..368bce0ed --- /dev/null +++ b/src/video_core/host_shaders/StringShaderHeader.cmake @@ -0,0 +1,11 @@ +set(SOURCE_FILE ${CMAKE_ARGV3}) +set(HEADER_FILE ${CMAKE_ARGV4}) +set(INPUT_FILE ${CMAKE_ARGV5}) + +get_filename_component(CONTENTS_NAME ${SOURCE_FILE} NAME) +string(REPLACE "." "_" CONTENTS_NAME ${CONTENTS_NAME}) +string(TOUPPER ${CONTENTS_NAME} CONTENTS_NAME) + +file(READ ${SOURCE_FILE} CONTENTS) + +configure_file(${INPUT_FILE} ${HEADER_FILE} @ONLY) diff --git a/src/video_core/host_shaders/opengl_present.frag b/src/video_core/host_shaders/opengl_present.frag new file mode 100644 index 000000000..8a4cb024b --- /dev/null +++ b/src/video_core/host_shaders/opengl_present.frag @@ -0,0 +1,10 @@ +#version 430 core + +layout (location = 0) in vec2 frag_tex_coord; +layout (location = 0) out vec4 color; + +layout (binding = 0) uniform sampler2D color_texture; + +void main() { + color = vec4(texture(color_texture, frag_tex_coord).rgb, 1.0f); +} diff --git a/src/video_core/host_shaders/opengl_present.vert b/src/video_core/host_shaders/opengl_present.vert new file mode 100644 index 000000000..2235d31a4 --- /dev/null +++ b/src/video_core/host_shaders/opengl_present.vert @@ -0,0 +1,24 @@ +#version 430 core + +out gl_PerVertex { + vec4 gl_Position; +}; + +layout (location = 0) in vec2 vert_position; +layout (location = 1) in vec2 vert_tex_coord; +layout (location = 0) out vec2 frag_tex_coord; + +// This is a truncated 3x3 matrix for 2D transformations: +// The upper-left 2x2 submatrix performs scaling/rotation/mirroring. +// The third column performs translation. +// The third row could be used for projection, which we don't need in 2D. It hence is assumed to +// implicitly be [0, 0, 1] +layout (location = 0) uniform mat3x2 modelview_matrix; + +void main() { + // Multiply input position by the rotscale part of the matrix and then manually translate by + // the last column. This is equivalent to using a full 3x3 matrix and expanding the vector + // to `vec3(vert_position.xy, 1.0)` + gl_Position = vec4(mat2(modelview_matrix) * vert_position + modelview_matrix[2], 0.0, 1.0); + frag_tex_coord = vert_tex_coord; +} diff --git a/src/video_core/host_shaders/source_shader.h.in b/src/video_core/host_shaders/source_shader.h.in new file mode 100644 index 000000000..ccdb0d2a9 --- /dev/null +++ b/src/video_core/host_shaders/source_shader.h.in @@ -0,0 +1,9 @@ +#pragma once + +#include <string_view> + +namespace HostShaders { + +constexpr std::string_view @CONTENTS_NAME@ = R"(@CONTENTS@)"; + +} // namespace HostShaders |